Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan hanh chu snippets" » "dang hanh chu snippets", "dan khanh chu snippets", "dan thanh chu snippets", "dan hanh che snippets", "dan hanh khu snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan hanh chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan hanh chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan hanh chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan hanh chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.